Meet the site
Shortland Bluff Bommie – Bluff Bommie to the locals – is a small site with a large reputation. The Scuba Doctor listing gives it 18–20 m and an Advanced Open Water rating and then says, in a single sentence, everything that matters: it is 'one of Victoria's scariest dives with fierce tidal currents and a narrow slack water window'. It lies just off Shortland Bluff, the headland at Queenscliff on which the lighthouses and Fort Queenscliff stand, where the flow out of the Queenscliff channel meets the main tidal stream of Lonsdale Bight.
The bommie itself is a limestone outcrop on a flat bottom at 20 m, and its interest is that of any current-swept rock at the Heads: dense encrustation of sponges, zoanthids and soft corals on the up-current faces, crayfish and blue devils in the undercuts, and fish holding in the eddy behind it – sweep, boarfish, old wives, magpie perch. The listing publishes no species list and the description here is drawn from the adjacent Boarfish Reef Drift ground 100 m away, which covers the same reef system.
What sets it apart is the water. Because it sits at a junction of tidal streams, the slack here is shorter than almost anywhere else inside the Heads and the current, when it comes, comes at once and hard. The dive is therefore a matter of being on the shot at the predicted minute, circling the rock for a quarter of an hour, and leaving before the stream builds – with the boat live and a DSMB ready. It is dived rarely, by Queenscliff club divers who know the timing, and it is not a site for anyone's first Heads dive; but for experienced current divers who want to see what the tide does to a rock in its path, it is instructive. Data confidence is moderate.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Shortland Bluff Bommie is recorded as Pinnacle/Bommie in Port Phillip Heads. The listed access is boat. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Current and timing
- Ask how the operator assesses the current window for the actual route. Historical tide notes are not a departure instruction.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
- Planned depth
- Confirm the intended route and training requirements; the recorded maximum is not a target.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Shortland Bluff Bommie suitable for my certification?
The record lists Advanced Open Water. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Shortland Bluff Bommie through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Sponges, zoanthids, soft corals, southern rock lobster, southern blue devil, silver sweep, longsnout boarfish, old wife, magpie perch
Location
Bommie off Shortland Bluff, Queenscliff, about 900 m south of the bluff and 102 m north-east of the Boarfish Reef Drift mark.
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
scubadoctor.com.auscubadoctor.com.auRecord updated 26 Sept 2026. Source claims are being reviewed.
